208390980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1499}}^1$

素因数の和:1849

約数の個数: 96

約数和(自身を含む): 669312000

約数和(自身を除く): 460921020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 331, 420, 662, 993, 1324, 1499, 1655, 1986, 2317, 2998, 3310, 3972, 4497, 4634, 4965, 5996, 6620, 6951, 7495, 8994, 9268, 9930, 10493, 11585, 13902, 14990, 17988, 19860, 20986, 22485, 23170, 27804, 29980, 31479, 34755, 41972, 44970, 46340, 52465, 62958, 69510, 89940, 104930, 125916, 139020, 157395, 209860, 314790, 496169, 629580, 992338, 1488507, 1984676, 2480845, 2977014, 3473183, 4961690, 5954028, 6946366, 7442535, 9923380, 10419549, 13892732, 14885070, 17365915, 20839098, 29770140, 34731830, 41678196, 52097745, 69463660, 104195490, 208390980]

約数ペア:

[(1, 208390980), (2, 104195490), (3, 69463660), (4, 52097745), (5, 41678196), (6, 34731830), (7, 29770140), (10, 20839098), (12, 17365915), (14, 14885070), (15, 13892732), (20, 10419549), (21, 9923380), (28, 7442535), (30, 6946366), (35, 5954028), (42, 4961690), (60, 3473183), (70, 2977014), (84, 2480845), (105, 1984676), (140, 1488507), (210, 992338), (331, 629580), (420, 496169), (662, 314790), (993, 209860), (1324, 157395), (1499, 139020), (1655, 125916), (1986, 104930), (2317, 89940), (2998, 69510), (3310, 62958), (3972, 52465), (4497, 46340), (4634, 44970), (4965, 41972), (5996, 34755), (6620, 31479), (6951, 29980), (7495, 27804), (8994, 23170), (9268, 22485), (9930, 20986), (10493, 19860), (11585, 17988), (13902, 14990)]